The couple arrived home 10 minutes earlier than usual. Therefore the point at which they met 100
must have been 5 minutes driving time from the station. Thus the wife should have been at that point at five minutes to six. Since the man started to walk at five o’clock, he must have been walking for 55 minutes when hi met his wife.

There isn’t really any mystery, because the ex-planation is simple. While the two ways of selling are only identical, when the number of marbles sold at three for a paise and two for a paise is in the proportion of three to two. There-fore when the first woman handed over 36 marbles and the second woman 24, they would have fetched 24 paise, immaterial of sold separately or at five for 2 paise. But if they each held the same number of marbles there would be a loss when sold together of 1 paise in every 60 marbles. So, if they had 60 each, there would be a loss of 2 paise and if there were 90 each (180 altogether) they would lose 3 paise and so on. In the case of 60, the missing 1 paise arises from the fact that the 3 a paise woman gains 2 paise and the 2 a paise woman loses 3 paise. The first woman receives 9.5 paise and the second woman 14.5, so that each loses 0.5 paise in the transaction.

I don’t know about you, but I would have handed over 5 two paise stamps, 30 one paise stamps and 7-five paise stamps

27 2+7=9, 9×3=27

Let’s assume G is the number of glasses delivered intact. Then,
3G = the amount earned. Let’s assume B is the number of glasses broken. Then
9B = the amount forfeited 3G—9B = 240 9B = —240 G + B = 100 3B = 300
128=60
B = 5 and G = 95.

The minimum number of weights required is five and these should weight 1, 3, 9, 27 and 81
pounds.

[MODIFICATION]
Explanation As per “BhaiBhai” comment-
For 2 Kg –
On one pan put 3 kg and on the other one put 1 kg

Likewise for 5 kg – 
9 kg on one pan and 1+3 kg on another pan

For 6 kg – 9 on one and 3 on another
for 7 kg   –  1 and 9 on one and 3 on another
for 8 kg   – 9 on one pan and 1 on another.

Jayant was 24 and Mohini 18.

When Tinku takes 12, Rinku and Jojo will take 9 and 14 respectively—and then they would have taken altogether thirty-five nuts.
Thirty-five is contained in 770 twenty-two times which means all one has to do now is merely multiply 12, 9 and 14 by 22 to find that Tinku’s share was 264, Rinku’s 198 and Jojo’s 308. Now as the total of their ages is 17.5 years or half the sum of 12, 9 and 14, their respective ages must be 6, 4.5 and 7 years.

Both are same as the quantity of both the material is same i.e. 1 pound

All the transactions carried out through the counterfeit note are invalid, and therefore every-body stands in relation to his debtor just where he was before I picked up the note